Re: Image capture -- renegade threads

• To: Bill Hibbard <billh@xxxxxxxxxxxxx>
• Subject: Re: Image capture -- renegade threads
• From: Leah Heiss <leah@xxxxxxxxxxxxxxxxxx>
• Date: Fri, 15 Aug 2003 14:20:34 -0700 (PDT)

Ok.  I called display.stopThreadPool() right after I called
display.destroy().  I ran my edited version of Rivers through
jdb and got the following exception:

java.lang.Error: Task queued after threads stopped
        at visad.util.ThreadPool.queue(ThreadPool.java:214)
        at visad.ActionImpl.run(ActionImpl.java:397)
        at visad.util.ThreadPool$ThreadMinnow.run(ThreadPool.java:95)
java.lang.Error: Task queued after threads stopped
        at visad.util.ThreadPool.queue(ThreadPool.java:214)
        at visad.ActionImpl.run(ActionImpl.java:397)
        at visad.util.ThreadPool$ThreadMinnow.run(ThreadPool.java:95)


Leah


On Fri, 15 Aug 2003, Bill Hibbard wrote:

> > I didn't find a 'suspend all' command.  So, I executed 'threads'
> > followed by 'where all'.  Here is the output:
>
> Thanks. You can stop the ActionThreads by calling:
>
>   ActionImpl.stopThreadPool();
>
> But if you're going to construct more DisplayImpls or
> CellImpls, there's probably no point since those
> constructors will just create more ActionThreads.
>
> I don't know much about the other Threads.
>
> Good luck,
> Bill
>
> > main[1] threads
> > Group system:
> >   (java.lang.ref.Reference$ReferenceHandler)0xe8 Reference Handler cond.
> > waiting  (java.lang.ref.Finalizer$FinalizerThread)0xe7  Finalizer
> > cond. waiting  (java.lang.Thread)0xe6                         Signal
> > Dispatcher running
> > Group main:
> >   (java.lang.Thread)0x1                          main              running
> > (at breakpoint)
> >   (visad.util.ThreadPool$ThreadMinnow)0x194      ActionThread-0    cond.
> > waiting  (visad.util.ThreadPool$ThreadMinnow)0x195      ActionThread-1
> > cond. waiting  (visad.util.ThreadPool$ThreadMinnow)0x196
> > ActionThread-2    cond. waiting  (visad.util.ThreadPool$ThreadMinnow)0x197
> > ActionThread-3    cond. waiting  (visad.util.ThreadPool$ThreadMinnow)0x1aa
> > ActionThread-4    cond. waiting  (java.lang.Thread)0x2a1
> > Thread-6          unknown
> >
> >
> > main[1] where all
> > Signal Dispatcher:
> > Finalizer:
> >   [1] java.lang.Object.wait (native method)
> >   [2] java.lang.ref.ReferenceQueue.remove (ReferenceQueue.java:111)
> >   [3] java.lang.ref.ReferenceQueue.remove (ReferenceQueue.java:127)
> >   [4] java.lang.ref.Finalizer$FinalizerThread.run (Finalizer.java:159)
> > Reference Handler:
> >   [1] java.lang.Object.wait (native method)
> >   [2] java.lang.Object.wait (Object.java:429)
> >   [3] java.lang.ref.Reference$ReferenceHandler.run (Reference.java:115)
> > main:
> >   [1] Rivers.main (Rivers.java:106)
> > ActionThread-0:
> >   [1] java.lang.Object.wait (native method)
> >   [2] java.lang.Object.wait (Object.java:429)
> >   [3] visad.util.ThreadPool$ThreadMinnow.run (ThreadPool.java:128)
> > ActionThread-1:
> >   [1] java.lang.Object.wait (native method)
> >   [2] java.lang.Object.wait (Object.java:429)
> >   [3] visad.util.ThreadPool$ThreadMinnow.run (ThreadPool.java:128)
> > ActionThread-2:
> >   [1] java.lang.Object.wait (native method)
> >   [2] java.lang.Object.wait (Object.java:429)
> >   [3] visad.util.ThreadPool$ThreadMinnow.run (ThreadPool.java:128)
> > ActionThread-3:
> >   [1] java.lang.Object.wait (native method)
> >   [2] java.lang.Object.wait (Object.java:429)
> >   [3] visad.util.ThreadPool$ThreadMinnow.run (ThreadPool.java:128)
> > ActionThread-4:
> >   [1] java.lang.Object.wait (native method)
> >   [2] java.lang.Object.wait (Object.java:429)
> >   [3] visad.util.ThreadPool$ThreadMinnow.run (ThreadPool.java:128)
> > Thread-5:
> >
> >
> > main[1] step
> >
> >
> > Leah
> >
> >
>

• Follow-Ups:
  • Re: Image capture -- renegade threads
    • From: Bill Hibbard

• References:
  • Re: Image capture -- renegade threads
    • From: Bill Hibbard